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Topic Review (Newest First)

09-25-2018 04:26 AM

LotusCC

No video attached....?

09-24-2018 08:19 PM

turbophil

So I sold my precious race car a couple weeks ago... Kids, family, etc, etc... Time for a change... and then there are the Evoras too!

The new owner posted up his comments after getting it to the track for the first time.... His most precise comment to describe my old car, "This car was insanely fast, requires 100% concentration and the harder your push the more it asks for."

...Going to miss that chapter!...

Buddy Boyter is with Phil
9 hrs
So as some of you may know, I have owned and raced my 2005 Lotus Elise since 2012 and just built it to competitive @ SSM level (FYI it is for sale if anyone is interested). While the engine was being built by Phil and team at BoE, Phil decided to sell his full race Elise and unbelievably I won the auction and picked it up Labor day weekend. Since then I have been working on selling mine and getting my tow rig repaired so Sunday was my first day actually starting it up and running it. Keep in mind this is Florida and it was 100 degrees outside and sunny so temps are hard to keep down so I only was getting 5 flying laps per session.

I went into this event with the mind set that this is a new car to me, double the HP from the old build of mine, mechanical brake bias system with no ABS, sequential transmission with no LSD and all kinds of aero, so my wish was just to drive 7/10th, learn the car, have fun, don't blow it up and don't wreck it. Phil has owned this car from new, built it from the ground up to be the beast it is today and it performed exactly as advertised. This car was insanely fast, requires 100% concentration and the harder your push the more it asks for.

I ran at The FIRM, which is semi local 1.6 mile road course, that in my old Lotus on the Rev400 setup, my personal best was 1:18.2. This is after hundreds of laps on this course and hundreds of hours in my car. Yesterday in the new to me Lotus from Phil, this car ran a 1:15.492 out of the gate (although apparently my video feed had issues the entire session). This was not only almost 3 second faster but I wasn't even touching the limits of what this car can do. I could easily see 1:13s in it on cooler days with more seat time. I was also informed later from the guys at the track this could be the fastest non open wheel lap set at this track.

Just wanted to share the experience that I had yesterday grinning from ear to ear, and also say what many of us know that there is no substitute for experience and dedication to a chassis like Phil and BoE have to get the most out of your car. This video is from my second fastest lap that the video recorded at 1:16.206. Enjoy the glorious sounds from this Lotus I now call "End Game".

Phil don't beat me up to much on driving this monster, I know I could be braking much later and using every inch of the track

02-04-2016 11:27 AM

acslater

Sheesh, that widebody clam is slick...might have to add that to my BOE order....

12-07-2015 12:49 AM

ExigeTT

BOE Oil Cooling - Tried and Tested Tricks?

Hi Phil - been loving following your build and driving.

You've inspired the next step in my build. You might see me next time I am in the USA.

Phil,
Thanks for putting me on the right track, got the oil pressure display working now. Next I want to install MAP sensor. Where should I tap into manifold pressure?
John

10-22-2015 06:12 AM

turbophil

Ah. Well, there's your problem. The sensor on the head is just a VVL verification sensor. It only receives pressure when the "big cam" is engaged. The proper location is just above the oil filter on the block. You'll find another pressure switch there. You can tee off it. The thread is 1/8 BSP taper.

-Phil

10-22-2015 05:53 AM

jhowar

No, pressure does not change with rpm. I mounted sensor on the head with the stock pressure switch. I'll try mounting on firewall. Thanks for your help.
John

Enjoying watching your build and getting ideas for my car, 2008 S240 which I run in TT3. Like you, I use AIM data which I like very much. My question is this: I added an oil pressure sensor using a T fitting with the stock oil pressure switch. MXL2 dash reads 0 engine off and 1-2 psi engine running. Sent the sensor and the dash back to Josh at AIM, both check out. Had my local AIM dealer check the install, we can't figure out why this won't work. Any ideas?

I suppose it's possible that you only have 1-2PSI oil pressure!

Are you finding that the pressure comes up with RPM?

Have you verified the oil pressure with a mechanical gauge?

Additionally, are you mounting the sensor right on the block or from a hose? The sensor should not be mounted right on the motor, but rather remote mounted on the firewall. The vibration from the motor can cause them to give odd readings and/or fail early....

Hope that helps,

Phil

10-21-2015 12:11 PM

jhowar

Enjoying watching your build and getting ideas for my car, 2008 S240 which I run in TT3. Like you, I use AIM data which I like very much. My question is this: I added an oil pressure sensor using a T fitting with the stock oil pressure switch. MXL2 dash reads 0 engine off and 1-2 psi engine running. Sent the sensor and the dash back to Josh at AIM, both check out. Had my local AIM dealer check the install, we can't figure out why this won't work. Any ideas?

09-28-2015 10:16 PM

turbophil

More Engine progress to round out the season....

...and more engine progress to round out the season....

We've been working with Jim of JCR for years on perfecting the 2ZZ head. I believe we're the first on the planet to be running these little gems from Ferrea as part of their development team alongside JCR.

Many thanks to Jim for pushing on Ferrea so hard to get these to the market.

Also, testing and tuning has shown that on a supercharged engine, we were able to negate torque loss down low and pickup nice power all the way from 5500 RPM to redline. These rockers DO change the ratio and increase the valve lift, while decreasing valvetrain inertia and friction. These are the last step to fixing the weak links in the 2ZZ head!

There will be more cam shafts to follow, but I can say for certain they will work just fine on cams configured for the OEM rockers.

Substantial ECU remapping is/was required for those interested at home....

-Phil

09-27-2015 06:46 PM

turbophil

Had a good weekend of running again. A quick vid...

While we reset the track record, we opted to not tear the trans down to move to taller gearing since we have events shortly after and a full shop of work to do for customers. So we were way under-geared and found the top end of the RPM range in 6th before T1 of the oval! Ouch!

What a great test of the motor to sit at redline around the speedway oval!

There's always room for improvement, but not a lot of point in pushing too hard in the Speedway's concrete jungle of walls...

FYI- Still quite a bit of platform movement with 1,000 pound springs, good roll centers, and a super heavy 1.25 inch roll bar set stiff... Amazing what some aero and tires will allow you to do!

-Phil

08-20-2015 12:37 AM

turbotoaster

running the solid rear engine cover will definitely allow much cleaner air to get to that rear wing and as such allow less AOA.

On mine and Jamies Time Attack cars we both went for solid ones verses the motorsport vented versions that are avaliable for better aero and both have the same dual element wing.

Jamie has 600bhp+ and runs his main element at minus 2 degrees I believe with 1600lb springs on the rear so it makes some decent downforce, im sure you know this but because the air will be attached to the engine cover it will interact with the wing at a different angle, so you might set it at 0 degrees but infact the wing is getting air at 5-10 degrees.

Dallasreed, those wing uprights dont look strong enough for what your doing with it, that wing at 150mph will probably be making circa 400kg of downforce, thats 4 very large guys sitting on it, would you be confident to do that, ive driven without my wing at 80mph and even in a straight line it felt scary, i wouldnt want it to fail at high speed on track, ive had that and been thrown into a wall at 90mph so wouldnt want i to happen to anyone else.

Mine are made from 12mm pure carbon fibre which i will be cutting some holes out for weight reduction but even so, they are 700mm x 220mm x 12mm an weigh 1.2kg each

i would suggest you thicken up your supports or at least cross brace them, i use carbon rod for that.
This is at 80mph with my wing, on 700/900 setup for testing, my diffuser is normally 80mm from the ground when static

Also Phil shouldnt have any issues with temps, that rear wing will create a low pressure zone behind the car and help pull the air out, aswell as the natural pressure differential between in and outside of the clam, ive got a red hot turbo 4inches from the back of my head and you can see the exhaust popping out of the side of the rear clam and dont have any temperature issues in there.

Although I haven't done road course with it yet I think the effects will be noticeable and positive there also. Pretty much every angle is adjustable, so I think it could be dialed in for whatever within reason.

The wing in probably fine, but the mounting is probably not fine if it makes anything like serious DF. My wing bent the frame over time and toppled over 3/16" aluminum mounts that look a fair bit beefier than you have there.... We tried a couple variations of mounts that sandwiched the clam in a similar fashion you pictured there. Eventually the system failed as it's quite difficult to get very good lateral support with that setup you have.

Finally just dealt with reality and made tall one-piece carbon spars from 1/2" honeycomb wrapped in 7x7 ply CF that went into aluminum receivers mounted to the fish-plated frame and hung the wing from those. We put a few guys standing on the wing and pushed it side to side to be sure it was going to hold some reasonable lateral load. My guess is that if you had 2 or 3 guys standing on your wing and they shook side to side it would break something quick...

-Phil

Edit: PS- Manufacture makes sense. Looked very APRish. Their stuff is uber heavy, but it is certainly priced right. They are a great entry point into some decent aero parts for sure.

Nice Phil. You definitely need a "faster" steering rack. Seriously, do you have the quickest ratio available installed on the car? If not, it would be a very good upgrade.

Bob L

Thanks, Bob. Good advice. It's a stock rack! It's really tough to make the time to get to everything. My poor car is always the project that gets worked on between midnight and 3AM since the customer cars come first... A real short rack would certainly be the way to go. Only caveat is being in good shape. As you can see in the video, there's an awful lot of feedback as it is with the aero and speeds, so it can get a bit exhausting at the end of a day!

Nevertheless, a short ratio rack is on the list... Probably over the winter/off-season

Interesting, Dallas. You did a nice job with your uprights, and etc... Who did the wing again?

Overall setup may be good for autocross, but not likely the right setup for road course, FWIW...

Cheers,

Phil

cirodesign racing & apr performance

Although I haven't done road course with it yet I think the effects will be noticeable and positive there also. Pretty much every angle is adjustable, so I think it could be dialed in for whatever within reason.

08-19-2015 08:00 PM

Formulabob

Nice Phil. You definitely need a "faster" steering rack. Seriously, do you have the quickest ratio available installed on the car? If not, it would be a very good upgrade.

Bob L

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